Improvement in spoke-tenoning machines



W. H. VO'NBEHREN.

Spoke Tenoning Machine.

Patented July 20,1875.

h'z/entor:

'IUNITED STATES PATENT :OrTron.

WILLIAM H. VON BEHREN, OF LOGANSPORT, INDIANA.

IMPRCSVEMENT IN SPOKE-TENONING MACHINES.

Specification forming part of Letters Patr nt No. "$5,895, dated July20, 1875;

- June 14, 15 75.

To all whom it may concern:

REN, of Logansport, in the county of Cass and State of Indiana, haveinvented certain new and useful Improvements in Spoke-Tenoning Machines;and I do hereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art towhich it pertains to make and use the samc,reference being had to theaccompanying drawing, and to the letters of reference marked thereon,which form a part of this specification.

Figure l is a-perspective view of the ma- I chine; Fig. 2, plan of thetable, showing the chuck and tail-block; and Fig.3, a detail.

The present invention relates to that class of devices designed forfacing and tenoning spokes; and the improvement consists moreparticularly in the method of holding the spokes between centers; also,in the general detail and combination of the machine, all as will now bemore specifically and in detail set forth.

In the accompanying drawings, A denotes the bed; B, two ways set atright angles to the length. of said bed, their feet or bases securedupon the upper face of said bed O, the table, which is adapted to bemoved back and forth upon the upper edges b of said ways, suitablegrooves and guides being provided therefor in the ways and upon theunder side of said table. The table top may be whole or have openings,as now shown at G. These openings will be of use in disposing of theshavings, &c., arising from the operation of the machine. I Thetail-block D is secured to the upper facehof the said table near itsouter end, opposite to the cutting mechanism and on the front side. Thetail block D can be moved horizontally to and froin guides, upon adaptsthe same to be held at any point where it may be placed. The inner endof said application filed spindle-that is, the end nearest the cut- Beit known that I, WILLIAM H. VoN Bnnter headshas upon it a point orcenter, 01, which is used in connection with the chuck K attached tocircle-bar K at the other end of the machine, to hold the spoke inpositionwhen it is being offered to the cutter. Suitable motion can beimparted to the upper and lower double cutter-heads F F and G G by meansof the shafts H H journaled in suitable bearings. The said cutter-headsare re spectively keyed to the ends of said shafts, viz., Fand F uponH,andGand G upon H. The knives or cutters are secured to said cutterheadby screws in the usual way. The inner ones F and G are adapted forcutting the tenon, and the outer ones F and G for facing the shoulders.Between each of said double cutter-heads, and in the periphery, aresecured two segmental saws, one opposite the other. One is now indicatedat f in the upper, and another at g inthe lower, double cutter-heads. Ineach instance the other saw would. be on the periphery of thecutter-head directly opposite. The said upper and lower doublecutter-heads can be adjusted vertically in any suitable relation to eachother, and to the table and centers, so as to be operated in any desiredmanner upon the spokes, by means of the screw-rods I I turned byhand-wheels 'i t". By means of these the frames carrying the shafts towhich said cutter-heads are attached can be raised or lowered to effectthe purposes above indicated. The frames carrying said shafts, as above,are provided with suitable guides upon their outer ends or edges forthis purpose. Motion can be imparted to the out: ter-heads, &c., in anyusual and ordinary manner.

Having thus described in general the construction and arrangement of mymachine, I will now specify the details of its operation. The table isdrawn forward upon its ways. The ends of the spoke L having beenindented or notched, the inner end is then fitted upon the pin or centerIt in the chuck, and the outer ofi'ered to the point d of thetail-block. The lever E is now turned downward, and the said point isdriven into the indentation in the outer end of the spoke, and thus thespoke is firmly bound in position. has a weight of sufficient size uponit to pre- The handle of the lever' the end of the spoke.

serve the position of the lever, and hold the spoke secure. The table isnow pushed toward the revolving cutter-heads, and as the spoke-headpasses by them the upper cutters and saws cut, dress, and tenon theupper side of the spoke end, and the lower performs the same operationon the under side. The lever is now turned up, and the finished spoke released, the table drawn forward, and another spoke placed in position.

As thus made and used my invention insures the fixed position of thespoke while passing between the cutter-heads, and prevents any variationof the tenon, so that the knives and saws are always sure to strike uponthe desired parts and places in and upon By this means a great gain ismade by preventing almost all the imperfect work, which is sure to comenotwithstanding the utmost care in working the machine as now made andused.

Having thus described my invention, what I consider new, and desire tosecure by Letters Patent, is-

1. The circle-bar K, in or upon which the center is fixed, combined withthe double cutter-heads, to operate substantially in the manner and forthe purposes set forth.

2. The movable table of a tenoning-machine, substantially as described,provided with a circle-bar at one end, having a center attached to it,and an adjustable center at the other end, combined to operatesubstantially as described.

3. The combination of a movable table, provided with a fixed center atone end and anadjustable center at the other, with double cutter-heads,substantially as and for the purposes described.

In testimony that I claim the foregoing as my own, I affix my signaturein presence of two witnesses.

'w. HENRY VON BEHREN.

Witnesses:

Tnos. B. HELM, SIMON P. SHINN.

